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Third segment of NASA Sci Files The Case of the Technical Knockout explaining how the vikings navigated the Atlantic Ocean without the use of modern technology. Topics: NASA SciFiles, Vikings, History of Navigation, Polaris, North Star, Lodestone, Sextant, The Case of... Source: http://nasa.ibiblio.org/details.php?videoid=6518&start=0&subject=Technology

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NASA Sci Files segment explaining the history of flight beginning with the Wright Brothers and continuing to today's inventions such as the International Space Station. Topics: NASA Sci Files, Controlled Flight, History of Flight, Wright Brothers, Jet Engine, Speed of Sound,... Source: http://nasa.ibiblio.org/details.php?videoid=6356&start=0&subject=Aeronautics

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NASA Sci Files video containing the following nine segments. NASA Sci Files segment in which the tree house detectives have problems with their GPS device and decide to find out why it failed. NASA Sci Files segment explaining how pilots use GPS and the other uses for GPS. NASA Sci Files segment explaining how the vikings navigated the Atlantic Ocean without the use of modern technology. NASA Sci Files segment explaining how GPS receivers work with satellites to determine an exact location.... Topics: NASA SciFiles, Geocaching, Cache, Compass, Coordinates, Navigation, Maps, Pilots, GPS, Global... Source: http://nasa.ibiblio.org/details.php?videoid=6515&start=0&subject=Technology